Bahco BMMTRS1 User manual

BMMTRS1
SNA Europe SAS
BP 20104 Eragny
F-95613 Cergy Pontoise- France
Original Instructions

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1. GENERAL INSTRUCTIONS ................................ 3
1.1 Precaution safety measures .............................. 3
1.1.1 Preliminary ............................................................ 3
1.1.2 During use ............................................................. 3
1.2 Symbols ............................................................... 4
1.3 Instructions ......................................................... 5
2. DESCRIPTION ..................................................... 5
2.1 Instrument Familiarization ................................. 5
2.2 LCD Display ......................................................... 6
2.3 Key pad ................................................................ 7
3. FUNCTION DESCRIPTION .................................. 7
3.1 General Functions .............................................. 7
3.1.1 DATA HOLD mode ................................................ 7
3.1.2 Manual ranging and Auto-range mode .................. 8
3.1.3 Battery saver ......................................................... 8
3.1.4 Relative measurement mode ................................ 8
3.1.5 True RMS measurement ....................................... 8
3.2 Measurement Functions ..................................... 8
3.2.1 AC and DC Voltage measurement ........................ 8
3.2.2 Resistance measurement ..................................... 9
3.2.3 Capacitance measurement ................................... 10
3.2.4 Continuity Check ................................................... 11
3.2.5 Diode Test ............................................................. 12
3.2.6 Frequency measurement ...................................... 13
3.2.7 Temperature measurement ................................... 13
3.2.8 Current measurement ........................................... 14
3.2.9 NCVhEF ................................................................ 15
3.2.10 PC Link ................................................................. 15
4. TECHNICAL SPECIFICATIONS .......................... 15
4.1 General specications ........................................ 15
4.2 Measurement specications .............................. 16
4.2.1 Voltage .................................................................. 16
4.2.2 Frequency ............................................................. 17
4.2.3 Resistance ............................................................ 17
4.2.4 Diode Test ............................................................. 17
4.2.5 Continuity Check ................................................... 18
4.2.6 Capacitance .......................................................... 18
4.2.7 Temperature .......................................................... 18
4.2.8 Current .................................................................. 18
5. MAINTENANCE ................................................... 19
5.1 General maintenance .......................................... 19
5.2 Fuse replacement ............................................... 20
5.3 Battery replacement ........................................... 20
6. ACCESSORIES .................................................... 20
ENGLISH
Contents

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This instrument complies with IEC 61010-1: 2001, CAT III 1000V and CAT IV 600V overvoltage standards.
See Specications.
To get the best service from this instrument, read carefully this user’s manual and respect the detaile
safety precautions.
International symbols used on the Meter and in this manual are explained in chapter 1.2.
1.1 Precautions safety measures
1.1.1 Preliminary
• As the possibilities of high transient overvoltage occurred in today’s power systems increase, more
stringent safety standards are set for the electrical test equipment. Transients on electrical systems
(power grid, feeder or branch circuits) will trigger a series of incidents that may result in serious
personal injury. To protect you against transients, safety must be built into the test equipment.
• When using this Multimeter, the user must observe all normal safety rules concerning:
— Protection against the dangers of electric current.
— Protection of the Multimeter against misuse.
• For your own safety, only use the test probes supplied with the instrument. Before use, check that
they are in good condition.
1.1.2 During use
• If the meter is used near noise generating equipment, be aware that display may become unstable
or indicate large errors.
• Do not use the meter or test leads if th ey look damaged.
• Use the meter only as specied in this manual; otherwise, the protection provided by the meter may
be impaired.
• Use extreme caution when working around bare conductors or bus bars.
ENGLISH
1. GENERAL INSTRUCTIONS
Overvoltage
category In brief Examples
CAT I Electronic • Protected electronic equipment.
• Equipment connected to (source) circuits in which measures are taken to
limit transient overvoltage to an appropriately low level.
• Any high-voltage, low-energy source derived from a high winding resist-
ance transformer, such as the high-voltage section of a copier.
CAT II Single-phase
receptacle con-
nected loads
• Appliance, portable tools, and other household and similar loads.
• Outlet and long branch circuits.
• Outlets at more than 10 meters (30 feet) from CAT III source.
• Outlets at more that 20 meters (60 feet) from CAT IV source.
CAT III Three-phase dis-
tribution, including
single-phase com-
mercial lighting
• Equipment in xed installations, such as switchgear and polyphase motors.
• Bus and feeder in industrial plants.
• Feeders and short branch circuits, distribution panel devices.
• Lighting systems in larger buildings.
• Appliance outlets with short connections to service entrance.
CAT IV Three-phase at
utility connec-
tion, any outdoor
conductors
• Refers to the “origin of installation”; i.e., where low-voltage connection is
made to utility power.
• Electricity meters, primary overcurrent protection equipment.
• Outside and service entrance, service drop from pole to building, run
between meter and panel.
• Overhead line to detached building, underground line to well pump.

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• Do not operate the meter around explosive gas, vapor, or dust.
• Verify a Meter’s operation by measuring a known voltage. Do not use the Meter if it operates abnor-
mally. Protection may be impaired. When in doubt, have the Meter serviced.
• Uses the proper terminals, function, and range for your measurements.
• When the range of the value to be measured is unknown, check that the range initially set on the
multimeter is the highest possible or, wherever possible, choose the auto-ranging mode.
• To avoid damages to the instrument, do not exceed the maximum limits of the input values shown
in the technical specication tables.
• When the multimeter is linked to measurement circuits, do not touch unused terminals.
• Caution when working with voltages above 60Vdc or 30Vac rms. Such voltages pose a shock
hazard.
• When using the probes, keep your ngers behind the nger guards.
• When making connections, connect the common test lead before connecting the live test lead; when
disconnecting, disconnect the live test lead before disconnecting the common test lead.
• Before changing functions, disconnect the test leads from the circuit under test.
• For all dc functions, including manual or auto-ranging, to avoid the risk of shock due to possible
improper reading, verify the presence of any ac voltages by rst using the ac function. Then select
a dc voltage range equal to or greater than the ac range.
• Disconnect circuits power and discharge all high-voltage capacitors before testing resistance, con-
tinuity, diodes, or capacitance.
• Never perform resistance or continuity measurements on live circuits.
• Before measuring current, check the meter’s fuse and turn off power to the circuit before connecting
the meter to the circuit.
• In TV repair work, or when carrying out measurements on power switching circuits, remember that
high amplitude voltage pulses at the test points can damage the multimeter. Use of a TV lter will
attenuate any such pulses.
• Use just one 6F22 battery, properly installed in the Meter’s battery case, to power the Meter.
• Replace the battery as soon as the battery indicator ( ) appears. With a low battery, the Meter
might produce false readings that can lead to electric shock and personal injury.
• Do not measure voltages above 1000V in Category III, or 600V in Category III installations.
• When in REL mode, the “REL” symbol is displayed. Caution must be used because hazardous
voltage may be present.
• Do not operate the Meter with the case (or part of the case) removed.
1.2 Symbols
Symbols used in this manual and on the instrument:
CAUTION:refer to the instruction manual.
Incorrect use may result in damage to the
device or its components.
AC (Alternating Current)
DC (Direct Current)
AC or DC
Earth ground
Double insulated
Fuse
Conforms to European Union directives

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1.3 Instructions
• Remove test leads from the Meter before opening the Meter case or battery cover.
• When servicing the Meter, use only specied replacement parts.
• Before opening up the instrument, always disconnect from all sources of electric current and make
sure you are not charged with static electricity, which may destroy internal components.
• Any adjustment, maintenance or repair work carried out on the meter while it is live should be car-
ried out only by appropriately qualied personnel, after having taken into account the instructions in
this present manual.
• A “qualied person” is someone who is familiar with the installation, construction and operation of
the equipment and the hazards involved. He is trained and authorized to energize and de-energize
circuits and equipment in accordance with established practices.
• When the instrument is opened up, remember that some internal capacitors can retain a dangerous
potential even after the instrument is switched off.
• If any faults or abnormalities are observed, take the instrument out of service and ensure that it
cannot be used until it has been checked out.
• If the meter is not going to be used for a long time, take out the battery and do not store the meter
in high temperature or high humidity environment.
2. DESCRIPTION
2.1 Instrument Familiarization
The front panel is shown as in Figure 2-1, explanation being as follows:
1LCD display
Used for displaying the measuring results and
various symbols.
2Keypad
Measurement function keys.
3Rotary switch
Used for selecting measurement functions.
4Terminal receiving the red test lead for
voltage, resistance, capacitance, frequency,
temperature, diode and continuity measurements.
5µA/mA
Terminal receiving the red test lead for µA, mA
measurements.
6A
Terminal receiving the red test lead for 6A, 10A
measurements.
7COM
Terminal receiving the black test lead as a common
reference. Figure 2-1

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2.2 LCD Display
LCD screen is shown as in Figure 2-2, with its every symbol’s meaning shown as in the Table 1:
Figure 2-2
No. Symbol Meaning
1Indicates negative readings
2AC Indicator for AC voltage or current
3DC Indicator for DC voltage or current
4AUTO The meter is in the Auto-range mode in which the meter automatically selects
5PC-LINK The Meter is in the data transmission mode
6NCV No contact AC Voltage detect
7HThe meter is in Data Hold mode w
8REL The meter is in Relative Measurement mode
9MAX Display maximum data
10 MIN Display minimum data
11 Low battery indication
12 The meter is in Continuity Check mode
13 The meter is in Diode Test mode
14 %CºFº KMΩHz
nµm FAV Measurement units
15 This symbol means that the input is too large for the selected range

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2.3 Keypad
2.3.1 SELECT
Change to the second function.
1. At Ω and position
Switches between Resistance measurement, Diode Test and Continuity check.
2. At A mA µAposition
Switches between DC and AC current.
3. Power-up Option
Disables automatic power-off feature. Keep press this key when power on.
2.3.2
Press it to enter and exit the Data Hold mode. Press it and hold 2 seconds, backlight on; if press it
and hold for 2 seconds again, backlight off.
2.3.3 RANGE
At V~, V , A, mA and µA.
1. Press RANGE to enter in manual ranging mode.
2. Press RANGE to step through the ranges available for the selected function.
3. Press and hold RANGE for 2 seconds to return to auto-ranging.
2.3.4 REL r
1. Press REL rto enter and exit the Relative measurement mode. (Except Hz/Duty)
2. Keep press REL rmore than 2 seconds to enter the PCLINK mode.
2.3.5 Hz %
At V~, A, mA and µA.
1. Press it to start the frequency counter.
2. Press it again to enter duty (load factor) mode.
3. Press it again to exit the frequency counter mode.
2.3.6 MAX/MIN
This key is for measuring maximum value and minimum value.
1. Press it to enter Max/Min mode.
2. Press it again; the LCD will display the Maximum Value.
3. Press it again; the LCD will display the Minimum Value.
4. Press and hold it for two seconds, the meter will return to normal measurement state.
(Except Hz/Duty and Capacitance)
3. FUNCTION DESCRIPTION
3.1 General Functions
3.1.1 DATA HOLD mode
Data Hold mode makes the meter stop updating the display. Enabling Data Hold function in auto-
range mode makes the meter switch to Manual ranging mode, but the full-scale range remains the
same. Data Hold function can be cancelled by changing the measurement mode, pressing RANGE
key, or push HOLD key again.
HOLD

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To enter and exit the Data Hold mode:
1. Press HOLD key (short press). Fixes the display on the current value, H is displayed.
2. A second short press returns the meter to normal mode.
3.1.2 Manual ranging and Auto-range mode
The Meter has both manual ranging and auto-range options.
• In the auto-range mode, the Meter selects the best range for the input detected. This allows you to
switch test points without having to reset the range.
• In the manual ranging mode, you select the range. This allows you to override auto-range and lock
the meter in a specic range.
• The Meter defaults to the auto-range mode in measurement functions that have more than one
range. When the Meter is in the auto-range mode, AUTO is displayed.
To enter and exit the manual range mode:
1. Press RANGE key. The Meter enters the manual ranging mode. AUTO turns off. Each presses
of RANGE key increments the range. When the highest range is reached, the Meter wraps to the
lowest range.
NOTE: If you manually change the measurement range after entering the Data Hold modes, the
Meter exits this mode.
2. To exit the manual ranging mode, press and hold down RANGE key for two seconds. The Meter
returns to the auto-range mode and AUTO is displayed.
3.1.3 Battery Saver
The Meter enters the “sleep mode” and blanks the display if the Meter is on but not used for 15
minutes.
Press the HOLD key or rotate the rotary switch to wake the meter up.
To disable the Sleep mode, hold down the SELECT key while turning the meter on.
3.1.4 Relative measurement mode
The Meter will display relative measurement in all functions except frequency.
To enter and exit the relative measurement mode:
1. With the Meter in the desired function, touch the test leads to the circuit on which you want future
measurement to be based.
2. Press REL r key to store the measured value and activate the relative measurement mode. The
difference between the reference value and subsequent reading is displayed.
3. Press REL r key again return the Meter to normal operation.
3.1.5 TRUE RMS measurement
All the AC measurement values are TRUE RMS (true root-mean-square) values.
Frequency range is up to 1KHz.
3.2 Measurement Functions
3.2.1 AC and DC Voltage measurement
To avoid electrical shock and/or damage to the instrument, do not attempt to take
any voltage measurement that might exceeds 1000Vdc or 1000Vac rms.
To avoid electrical shock and/or damage to the instrument, do not apply more than
1000Vdc or 1000Vac rms between the common terminal and the earth ground.

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The Meter’s voltage ranges are 600.0mV, 6.000V, 60.00V, 600.0V and 1000V.
To measure ac or dc voltage (set up and connect the Meter as shown in Figure 3-1):
1. Set rotary switch to the DCV, ACV or AC/DC mV range.
2. Connect the black and red test leads to the COM and V terminals respectively.
3. Connect the test leads to the circuit being measured
4. Read the displayed value. The polarity of red test lead connection will be indicated when making
a DCV measurement.
NOTE: Unstable display may occur especially at 600mV range, even though you do not put test
leads into input terminals.
For better accuracy when measuring the DC offset of an ac voltage, measure the AC voltage rst.
Note the AC voltage range, then manually select a DC voltage range equal to or higher than the AC
range. This improves the accuracy of the DC measurement by ensuring that the input protection
circuits are not activated.
3.2.2 Resistance measurement
The Meter’s resistance ranges are 600.0Ω, 6.000kΩ, 60.00kΩ, 600.0kΩ, 6.000MΩand 60.00MΩ.
To measure resistance (set up the Meter as shown in gure 3-2):
1. Set the rotary switch to Ωrange.
2. Connect the black and red test leads to the COM and VΩterminals respectively.
3. Connect the test leads to the circuit being measured and read the displayed value.
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before measuring resistance.
AC Voltage DC Voltage
Figure 3-1 Measuring AC and DC Voltage
ENGLISH

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Some tips for measuring resistance:
• The measured value of a resistor in a circuit is often different from the resistor’s rated value. This is
because the Meter’s test current ows through all possible paths between the probe tips.
• In order to ensure the best accuracy in measurement of low resistance, short the test leads before
measurement and memory the test probe resistance in mind. This necessary to subtract for the
resistance of the test leads.
• The resistance function can produce enough voltage to forward-bias silicon diode or transistor junc-
tions, causing them to conduct. To avoid this, do not use the 60MΩ range for in-circuit resistance
measurements.
• On 60MΩ range, the meter may take a few seconds to stabilize reading. This is normal for high
resistance measuring.
• When the input is not connected, i.e. at open circuit, the gure “OL” will be displayed for the over-
range condition.
3.2.3 Capacitance measurement
The Meter’s capacitance ranges are 6.000nF, 60.00nF, 600.0nF, 6.000µF, 60.00µF, 600.0µF,
6.000mF, 60.00mF.
To measure capacitance (set up the Meter as shown in Figure 3-3):
1. Set the rotary switch to Ωrange.
2. Press the SELECT key to select capacitance Test
3. Connect the black and red test leads to the COM and terminals respectively (or you can use
capacitor test lead).
4. Connect the test leads to the capacitor being measured and read the displayed value.
Figure 3-2 Measuring Resistance
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before measuring capacitance.
Use the dc voltage function to conrm that the capacitor is discharged.

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Some tips for measuring capacitance:
• The meter may take a few seconds (>30 seconds in 600.0µF range) to stabilize reading. This is
normal for high capacitance measuring.
• To improve the accuracy of measurements less than 6nF, subtract the residual capacitance of the
Meter and leads.
• Below 100pF, the accuracy of measurements is unspecied.
3.2.4 Continuity Check
To test for continuity (set up the Meter as shown in Figure 3-4):
1. Set the rotary switch to range.
2. Connect the black and red test leads to the COM and Ω terminals respectively.
3. Connect the test leads to the resistance in the circuit being measured.
4. When the test lead to the circuit is below 50Ω, a continuous beeping will indicate it.
NOTE: Continuity test is available
to check open/short of the circuit.
Figure 3-3
Measuring Capacitance
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before testing for Continuity.

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3.2.5 Diode Test
To test a diode out of a circuit (set up the Meter as shown in Figure 3-5):
1. Set the rotary switch to range.
2. Press the SELECT key to select Diode Test.
3. Connect the black and red test leads to the COM and VΩ terminals respectively.
4. For forward-bias readings on any semiconductor component, place the red test lead on the com-
ponent’s anode and place the black test lead on the component’s cathode.
5. The meter will show the approx. forward voltage of the diode.
In a circuit, a good diode (Si)
should still produce a forward
bias reading of 0.5V to 0.8V;
however, the reverse-bias read-
ing can vary depending on the
resistance of other pathways
between the probe tips.
Figure 3-4
Checking the Continuity
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before testing diodes.

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3.2.6 Frequency and Duty Cycle measurement
The Meter can measure Frequency or Duty Cycle while making either an AC Voltage or AC Current
measurement.
To measure frequency or Duty Cycle:
1. With the meter in the desired function (AC Voltage or AC Current), press the Hz % key.
2. Read the frequency of the AC signal on the display.
3. To make a duty cycle measurement, press the Hz % key again.
4. Read the percent of duty cycle on the display.
5. Set the rotary switch to the Hz range.
6. Insert the black and red test leads into the COM and Hz input terminals.
7. Connect the test leads tip in parallel with the circuit to be measured. And don’t touch any electrical
conductors.
8. At frequency measuring status, press Hz % one time then meter enters duty cycle measuring
status, press it again then return to frequency measuring status.
9. Read the result directly from the display.
NOTE: In noisy environment, it is preferable to use shield cable for measuring small signal
3.2.7 Temperature measurement
Figure 3-5
Measuring Diodes
Do not measure Frequency on high voltage (>1000V) to avoid electrical shock
hazard and/or damage to the instrument.
To avoid electrical shock and/or damage to the instrument, do not apply more
than 250Vdc or 220Vac rms between the °C terminal and the COM terminal.
To avoid electrical shock, do not use this instrument when voltages at the meas-
urement surface exceed 60v dc or 24v rms. Ac.
To avoid damage or burns. Do not make temperature measurement in microwave
ovens.
ENGLISH

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To measure temperature:
1. Set the rotary switch to °C range and the LCD will show the current environment temperature.
2. Insert ‘K’ type thermocouples into the COM terminal and °C terminal (or you can insert it by
using Multi Function Socket), Taking care to observe the correct polarity.
3. Touch the object with the thermocouple probe for measurement.
4. Read the stable reading from LCD.
3.2.8 Current measurement
The Meter’s current ranges are 600.0µA, 6000µA, 60.00mA, 600.0mA, 6.000A and 10.00A.
To measure current (set up the Meter as shown in Figure 3-6):
1. Turn off power to the circuit. Discharge all high voltage capacitors.
2. Set the rotary switch to the µA, mA or A range.
3. Press the SELECT key to select DCA or ACA measuring mode.
4. Connect the black test lead to the COM terminal and the red test leads to the mA terminal for a
maximum of 600mA. For a maximum of 10A, move the red test lead to the A terminal.
5. Break the circuit path to be tested.
Touch the black probe to the more negative side of the break; touch the red probe to the more positive
side of the break. (Reversing the leads will give a negative reading, but will not damage the Meter.)
6. Turn on power to the circuit; then read the display. Be sure to note the measurement units at the
right side of the display (µA, mA or A). When only the gure “OL” displayed, it indicates over range
situation and the higher range has to be selected.
7. Turn off power to the circuit and discharge all high voltage capacitors. Remove the Meter and
restore the circuit to normal operation.
To avoid damage to the Meter or injury if the fuse blows, never attempt an in-circuit
current measurement where the open-circuit potential to earth is greater than 1000V.
To avoid damage to the meter, check the meter’s fuse before proceeding. Use the prop-
er terminals, function, and range for your measurement. Never place the probes in par-
allel with a circuit or component when the leads are plugged into the current terminals.
Figure 3-6
Measuring Current

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3.2.9 NCV (Non-Contact Voltage detect)
Set rotary switch to the ACV / EF- range, Press the SELECT key to go NCV detect mode. Put
the EF-DETECT AREA close to the AC power cable or the power socket, if AC electrical voltage is
present, the Buzzer warning will sound, and the symbol bar “-“ will be displayed on the LCD.
The lowest detect voltage is around 50V 50/60Hz.
The LCD display EF, when detect the AC voltage signal, the LCD display ‘ - ’/‘ -- ’/‘ --- ’/‘ ---- ’ from
weak to strong.
This function is depending model.
3.2.10 PC Link
The meter has serial data output function. It can be connected with PC by USB interface, so the
measured data can be recorded, analyzed, processed and printed by PC. Before use this function,
you need install the PC-Link software and USB driver in your PC.
Keep press REL r more than 2 seconds and the meter enter PC-Link mode, the symbol “PC-
LINK” will appear on LCD, and the serial data output function is active.
Auto power off function is disabled when PCLINK function active.
PC-LINK SOFT OPERATING MANUAL
1. Make sure the two Install USB driver and Install software/RUN les in the attached USB stick
successfully installed before any measurement.
2. Connect the meter’s OPTICAL PORT and computer USB port with the USB cable.
3. Run the PC-LINK software, click the Start button.
4. Keep press REL r key more than 2 seconds on the meter, the symbol “PC-LINK” will appear on
the LCD if the serial data output function is active.
As for check the USB cable success recognized, we can view it in the Device Manager by following
these steps:
• Right-click the My Computer icon on the Windows desktop, and then click Properties.
• Click the Hardware tab and then click Device Manager.
• Scroll through the list of installed devices till you locate the Ports (Com and LPT) entry. Click the
plus (+) beside this entry to view the installed ports, If no errors occur, the USB to Serial COM
Port (COM x) will appear, COM x is just the proper port, here x is a specic number.
5. Now the PC-LINK SOFT view the synchronic data or graph in the software interface.
6. To disable the PCLINK function, Keep press REL r key more than 2 seconds.
4. TECHNICAL SPECIFICATIONS
4.1 General specications
Environment conditions:
1000V CAT III and 600V CAT IV
Pollution degree: 2
Altitude < 2000 m
Operating temperature: 0~40°C, 32°F~122°F(<80% RH, <10°C non-condensing)
Storage temperature: -10~60°C, 14°F~140°F(<70% RH, battery removed)
Temperature Coefcient: 0.1x(specied accuracy) / °C (<18°C or >28°C)
MAX. Voltage between terminals and earth ground: 1000V AC rms or 1000V DC.
Fuse Protection: µA and mA: F 0.63A/1000V Ø 10.3x38; A: F 10A/1000V Ø 10.3x38.
Sample Rate: 3 times/sec for digital data.
Display: 3 5/6 digits LCD display. Automatic indication of functions and symbols.

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Range selection: automatic and manual.
Over Range indication: LCD will display “OL”.
Low battery indication: The “ ” is displayed when the battery is under the proper operation
range.
Polarity indication: “ ” displayed automatically.
Power source: 9V
Battery type: 6F22.
Dimensions: 190(L)x90(W)x40(H) mm.
Weight: 500 g. Approx. (battery included).
4.2 Measurement specications
Accuracy is specied for one year after calibration, at operating temperatures of 18°C to 28°C, with
relative humidity at less than 80%.
Accuracy specications take the form of: ± (% of Reading + Number of Least Signicant Digits)
4.2.1 Voltage
DCV
ACV
1. Frequency Range for ACV: 40Hz~400Hz.
2. Response for ACV: RMS measure, calibrated in rms of sine wave.
3. Overload Protection: 1000V dc or 1000V ac rms.
4. Input Impedance (Nominal): DC voltage: >10MΩ; AC voltage: >10MΩ
Range Resolution Accuracy
600mV 0.1mV ±(0.5% of rdg +5 digits)
6V 1mV
±(0.8% of rdg +5 digits)
60V 10mV
600V 100mV
1000V 1V ±(1.0% of rdg +2 digits)
Range Resolution Accuracy
600mV 0.1mV
±(1.0% of rdg + 5 digits)
6V 1mV
60V 10mV
600V 100mV
750V 1V ±(1.5% of rdg + 5 digits)
Above accuracies can be guaranteed within 5%~100% of the full range.
The RMS meter has residual value within 10 counts when the test leads are shorten, but that will
not affect the accuracy of measurement.

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4.2.2 Frequency
Logic frequency (1Hz-1MHz)
Linear frequency (6HZ~10KHZ)
4.2.3 Resistance
4.2.4 Diode Test
Range Resolution Accuracy
600.0Ω0.1Ω±(0.5% of rdg+3 digits)
6.000kΩ1Ω
±(0.5% of rdg+2 digits)
60.00kΩ10Ω
600.0kΩ100Ω
6.000MΩ1kΩ
60.00MΩ10kΩ±(1.5% of rdg+5 digits)
Range Resolution Accuracy
99.99Hz 0.01 Hz
±(0.1% of rdg+3digits)
999.9Hz 0.1 Hz
9.999kHz 0.001kHz
99.99kHz 0.01kHz
999.9kHz 0.1kHz
Range Resolution Accuracy
99.99Hz 0.01 Hz
±(0.05% of rdg+8digits)999.9Hz 0.1 Hz
9.999kHz 0.001kHz
Above accuracies can be guaranteed within 10%~100% of the full range.
Range Resolution Test Condition
1 V 0.001V Forward DC current approximately 1mA.
Reversed DC voltage approximately 1.5V.

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BMMTRS1
ENGLISH
4.2.5 Continuity Check
Description: Continuity beeper ≤50Ω
4.2.6 Capacitance
4.2.7 Temperature
Note: The specications of temperature don’t include thermocouple errors.
4.2.8 Current
Range Resolution Test Condition
600Ω0.1ΩOpen circuit voltage: approx. 0.5V
Range Resolution Accuracy
6nF 1pF ±(5.0% of rdg +20 digits)
60nF 10pF ±(3.0% of rdg +20 digits)
600nF 100pF
± (5.0% of rdg+10 digits)
6µF 1nF
60µF 10nF
600µF 100nF
6mF 1µF ±(5.0% of rdg +20 digits)
Range Resolution Accuracy
-200~0°C
1°C
±(5.0% of rdg + 4°C)
0~400°C ±(2.0% of rdg+ 3°C)
400~1200°C ±(2.0% of rdg+ 2°C)
Range Resolution Accuracy
600µA 0.1µA
±(1.5% of rdg+3 digits)
6000µA 1µA
60mA 0.01mA
±(1.5% of rdg+3 digits)
600mA 0.1mA
6A 1mA
±(1.5% of rdg+5 digits)
10A 10mA

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BMMTRS1
ACA
1. Frequency Range for ACA: 40Hz-400Hz
2. Overload protection: F 10A/1000V fuse for 10A
Overload protection: F 0.63A/1000V fuse for µA and mA ranges.
3. Maximum input current: 600mA DC or 600mA AC rms for µA and mA ranges, 10A DC or 10A AC
rms for 10A ranges.
4. For measurements>6A, 15 seconds ON each 10 minutes; Above 10A unspecied.
5. MAINTENANCE
This section provides basic maintenance information, including fuse and battery replacement
instructions.
Do not attempt to repair or service your Meter unless you are qualied to do so and have the
relevant calibration, performance test, and service information.
5.1 General Maintenance
Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.
Dirt or moisture in the terminals can affect readings.
To clean the terminals:
Turn the meter off and remove all test leads.
Shake out any dirt that may be in the terminals.
Soak a new swab with a cleaning and oiling agent (such as WD-40).
Work the swab around in each terminal. The oiling agent insulates the terminals from moisture-
related contamination.
Range Resolution Accuracy
600µA 0.1µA
±(1.8% of rdg+5 digits)
6000µA 1µA
60mA 0.01mA
±(1.8% of rdg+5 digits)
600mA 0.1mA
6A 1mA
±(3.0% of rdg+8 digits)
10A 10mA
Above accuracies can be guaranteed within 5%~100% of the full range.
The true RMS meter has residual value within 10 counts when the test leads are shorten, but that
will not affect the accuracy of measurement.
To avoid electrical shock or damage to the meter, do not get water inside the case.
Remove the test leads and any input signals before opening the case.
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20
BMMTRS1
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5.2 Fuse replacement
1. Set rotary switch to the OFF position.
2. Disconnect test leads and/or any connectors from the terminals.
3. Use a screwdriver to unlock the four screws on the rear cover.
4. Take out the rear cover from the meter.
5. Remove the fuse by gently prying one end loose, then sliding the fuse out of its bracket.
6. Install the replacement fuses only with specied ratings: F 0.63A/1000V Ø10.3x38 and
F 10A/1000V Ø10.3x38
7. Rejoin the rear cover and tighten the screws.
5.3 Battery replacement
1. Set rotary switch to the OFF position.
2. Disconnect test leads and/or any connectors from the terminals.
3. Use a screwdriver to unlock the two screws on the battery cover.
4. Take out the battery cover from the meter.
5. Remove the used battery.
6. Replace with one new 9V battery (6F22).
7. Rejoin the battery cover and tighten the screws.
6. ACCESSORIES
Delivered with the multimeter:
To avoid false readings, which could lead to possible electric shock or personal
injury, replace the battery as soon as the battery indicator ( ) appears.
Before replacing the battery, disconnect test leads and/or any connectors from
any circuit under test, turn the meter off and remove test leads from the input
terminals.
User's manual One piece
Test leads with clamp 10A One piece
Test leads with needle 10A One piece
"K" type Thermocouple leads One piece
USB cable One piece
PC-Link software + user manual USB stick One piece
Before replacing the fuse, disconnect test leads and/or any connectors from any circuit
under test. To prevent damage or injury replace the fuse only with specied ratings.